Horrible.
I would have specified steel embedments in the concrete above...and steel embedments in the concrete panels and then specified that a certified welder weld the two together in the field. Then any exposed steel or welds would be covered by a concrete patching crew afterwards...If there were any at all.
Possibly more expensive but thats the way we did it at the company I worked for. Also, as an engineer, I would've had to review all drawings to ensure that the embedments in the tunnel in the one blue print matched up to the embedments in the other blu print for the panel castings.
Very tedious, but at least no one dies.
I would think that the time required to drill holes OVERHEAD in the field to glue the bolts into place would have ate up any savings they could possibly have realized by A: not designeing decent connections, B: not Taken time to place steel embedments and C: not checking for matching locations.
Have you ever personally drilled overhead into concrete??? Unless they had a special rig, it would take a full day for 1 guy to drill holes just for one panel!! Maybe even more time than that.
If someone had designed a connection at the plant I worked for that specified that much field work the prints would never have made it to the production floor. The autocad guys would have sent it right back to the engineer with notes about how stupid engineers are compared to regular working folks...except phrased politely of course.
"I would have specified steel embedments in the concrete above...and steel embedments in the concrete panels and then specified that a certified welder weld the two together in the field."
How much field experience do you have?
As a drafter that produces shop drawings you have no idea how true your comment is. I save letters that I write to architects/engineers who have a fantasy how things are held in place. Everyday it seems the architects become more hesitant to issue an RFI because he knows it will be used as a basis for a change order.